36
ENGLISH
The rear fork of the motorcycle connects the rear wheel with the main frame, and enables the rear
wheel to move up and down in a certain range around a fixed point on the frame through the rear damper
to withstand the impact and vibration suffered by the rear wheel.
Section 10 Rear Fork
1. Structure and Working Principles of Rear Fork
Subject to big impact and vibration from the
rear wheel, the rear fork requires high intensity and
rigidity in respect of material selection and jointing.
Processes include jointing, riveting, etc. The rear
fork assembly mainly includes a rear fork, dust
seal, dustproof sealed cap, and fork shaft sleeve,
etc.
In order to ensure that the rear fork can move
up and down around a fixed center, joints of the
rear fork and vehicle body are equipped with
bushings or bearings. The rear fork makes the rear
wheel more flexible and reliable.
2. Demolition and Maintenance of Rear Fork
[1] Check the rear fork for any deformation or crack
generated due to the impact of external forces.
Check whether the fit clearances of various parts
of the rear fork become larger, and the rear fork
swings too dramatically.
In any of the above conditions, please replace or
repair the rear fork timely, to ensure the riding
comfort and safety.
Caution
Check the rear fork
Table 4-9: Maintenance of Rear Fork
3. Refer to Table 4-9 in respect of damage forms, fault phenomena and common
maintenance methods of the rear fork:
Component
Name
Damage Form
Component Fault
Phenomenon
Motorcycle Fault
Phenomenon
Maintenance Method
Rear Fork
The rear wheel is
impacted.
The rear fork is bent
and deformed.
The front motorcycle
wheel runs off tracking,
affecting the comfort,
stability and security.
Rectify or replace the
rear fork.
The motorcycle rolls over,
the rear fork falls and
breaks.
The rear fork breaks.
The motorcycle cannot
run properly.
Joint or replace the
rear fork.
The rear wheel is subject
to too violent impact and
vibration.
The rear fork falls off.
Riding comfort, stability
and security decrease. Joint the rear fork.
S u b j e c t t o p o o r
road conditions, the
motorcycle suffers
too violent impact
and vibration.
The dust seal of rear
fork shaf t sleeve is
heavily abraded.
T h e r e a r f o r k s h a f t
sleeve or bearing is
poorly sealed.
R e p l a c e t h e d u s t
seal of rear fork shaft
sleeve.
